Cushion-tire.



PATENTED AUG. 7, 1906. E. B. GADWELL.

CUSHION TIRE.

vAPPLICATION FILED NOV. 12, 1903.

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i'UNTTED STATES PATENT OFFTOE. y

EDVIN B. CADWELL, OF NEW YORK, N. Y., ASSIGNOR OF ONE-THIRD TO- FRANKJOHNSTON AND ONE-THIRD TO FRANK M. ASHLEY.

CUSHION-TIRE.

To a/ZZ whom it may concern:

Be it known that I, EDWIN B. OADWELL, a citizen ofthe United States, anda resident of the city, county, and State of New York, have inventedcertain new and useful Improveg ments in Cushion-Tires, of which thefollowing is a specification.

The present invention relates to cushiontires for vehicle-wheels, andmore especially to the type of tire designed to serve in connection witha rim having an outer circumferential depression, one of theprominentob., jects of the invention being novel metallic provision,conveniently and readily applied, for reinforcing and protectingthosevportions at the sides of the tire more nearly adjacent to the rim,whereby such portions are greatly strengthened, injury of the samethrough chang with contiguous rim parts avoided, and facility for thepositive securement of the tire in position promoted.

With the above and other purposes in view lthe invention comprisesgenerally a tire of yielding material having engaged with the sideportions of the same, contiguous to the rim, metallic sections, which inthe case of tires having inner lateral shoulders embrace the same bothon their outer and side surfaces, and thereby result in said metallicsections efficiently performing the functions for which they aredesigned.

The metallic sections arranged in the manner stated are so conditionedthat they will permit flexing movements of the tire proper involved inthe operations of the adjusting and removing of the same vwith respectto the rim. Furthermore, such metallic sections presenthighly-serviceable side bearings for permitting annularly-disposed wiresto positively clamp the tire in position.

There are other important features connected' with the invention, which,besides those alluded to, are clearly set'forth in the subsequentdetailed description.

ln the accompanying drawings, forming part of this specification, Figurel is a vertical cross-sectional view of a wheel-rim and tire, disclosingcertain features of my invention. Fig. 2 is a perspective view of aportion of the tire and illustrating the character and relation of themetallic sections or strips. Fig. 3 is a side view of the partsrepresented in the preceding figure. Fig. 4 is a perspective viewshowing a portion of one of the Specification of Letters Patent.Application filed November 12, 1903. Serial No. 180,826.

Patented Aug. *7, 1 906.

metallic sections or strips detached. Fig. 5 is a somewhat similar viewdisclosing a slightlymodified form of section or strip. Fig. 6 is avertical cross-sectional view of a wheel= rim and tire and illustratinganother em bodiment of the invention. Figs. 7 and 8 are perspectiveviews showing in relatively reversed positions the form of metallicsection or strip employed in the construction represented in Fig. 6.

Similar reference characters are employed to designate correspondingparts in the several figures of the drawings wherein they occur.

In the type of the invention disclosed in Figs 1 to 4, inclusive, Arefers to a yielding tire, which may be .of any desired form and,construction and embodying a base B, which latter is laterally extendedto present the longitudinallydisposed annular shoulders c B B', which,with the rest of the base, are

adapted to occupy a position within the circumferential channel ordepressionof the rim O of the wheel, which channel or depression isformed by providing said rim with integral fianges C C', the innersurfaces of which out wardly incline. The side edges l) of theshoulders-B are preferably under-beveled to adapt them for conformingwith the inner surfaces of the rim-flanges and for a further purposethat will presently appear.

B fore the introduction ,of the tire A into position said tire hasapplied to both shoulders B .B sections D, each being of a metal-as, forinstance, sheet metal-possessing sufficient malleability to permit thesections to readily accommodate themselves to the fiexingmovemcnts towhich the tire is ordinarily subjected during itsadjustment and removal.Each section D comprises a longitudinalthin flat band' .or strip d,integrally projecting from the inner edge of Which are a series oftransverselydisposed horizontal spurs d which also partake of the thinand flat character of the band or strip d and Which also for the sake ofuniformity may be mutually equidistantly located. The inner extremitiesd2 of these spurs are shown in F-ig. 4 as being horizontally rounded.lntegrally at the outer edge of each section are correspondingly-locatedspurs d3, which are turned at their connections with the strip, so as todepend therefrom more desirably at an angle corresponding with that ofthe beveled IOO edges of the shoulders l) of the tire. These .sections Dare applied to the tire, as indicated most clearly in Figs. l, 2, and 3,so that the spurs d penetrate and become embedded inthe material of thetire, and thus contribute to retain the strip d in a position resting onthe top of the shoulder B to which it pertains. The insertion of thespurs d is so conducted that besidesv resulting in the strip d restingupon the shoulder-top, as stated, the outer depending spurs d3 will bebrought in intimate bearing-contact with the beveled edge of theshoulder, such pressure ving ears cl3 will, vby reason of their appositerelation with respect to the rim-flanges, protect the shoulders from thechang action to which they might otherwise be liable.

The metallic provision at each side of the tire may be in the form of acontinuous thin 'band or strip having the horizontal and depending spurson its -inner and outer edges, respectively. I prefer, however, that theprovision at each side shall comprise a series of consecutivelydisposedmetal sections each comparatively short in length and embodying the thinband and spurs, as will be readily understood. This arrangement willpermit the degree of flexibility of each metal section to be materiallyincreased, as suflicient yield will be afforded at the section ends topermit the tire to partake of the requisite flexibility.

The character and disposition of the sections D when in position aresuch that said sections act to maintain the shouldered portions Bnormal, and thus obviate any tendency of said portions buckling orassuming other irregular condition between the rimflanges. Moreover, thetire is braced against undue torsional yield.

In Figs. l and 6 the tire is shown as having a strengthening-backing Eof fabric, attached thereto, preferably by incorporating the same withthe rubber of the tire and vulcanizing the whole together when the tireis formed. I prefer to form this backing of a plurality of layers ofcanvas, and, if desired, these may be in vthe form of long stripsrelatively superposed. When binding-wires F F are employed, it will beadvantageous to make the bottom canvas layer f sufficiently wide toprovide lateral extensions f, which can be folded 'over upon the stripsd of the metallic secv tions, and thus constitute a thin friction-padbetween the wires and sections, besides contributing to the securebinding of the parts together. From this it will be appreciated that thesections D, through the medium of their strips d, present highlysatisfactory bearings for the wires F F.

The character of the sections D may be varied. The spurs cl, instead ofbeing in transverse alinement with the spurs d3, as shown in Figs. l, 2,and 3, may be in alternate relation, as are the spurs d4 d5, in the formillustrated in Fig. 5, which will have the function of more uniformlydistributing the engaging portions of the sections D thus presented. Inlieu of pronounced spurs at the inner side of each section the engagingprovision thereat may be presented by downwardly curving the inner edgeportion of the strip, as indicated at d in Figs. 6, 7, and 8, and with aview of augmenting the engaging quality of said portion the metalforming the latter may be intermittently cut away or removed, asindicated at (i7, which will also have the effect of rendering thesection more flexible than if the curve d were continuous.

It will be apparent that the metal sections can be readily and cheaplyproduced in large quantities and that when combined with a tire willconfer numerous advantages not heretofore attained in so efficient andsimple a manner.

I do not desire to be understood as limiting myself to the particularconstructions and arrangements of parts shown and described, but reservethe right to all modifications within the scope of my invention.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-e l. A tire of flexible material having itsrim portion at each side equipped with a longitudinallyfextended metalstrip with inner provision embedded in the tire material and a pluralityof outer spurs in bearing contact with the tire-surface, said metalstrips constituting components of the tire before the application of thelatter tol a wheel-rim.

2. A tire of flexible material having its rim portion at each sideequipped with a longitudinally-extended flat metal strip provided at itsinner edge with a plurality of spurs embedded in the tire material, andat its outer edge with a plurality of angularly-disposed spurs.

3. The combination with the rim, of the tire of flexible material withlateral shoulders, metal sections engaged with and carried by saidshoulders and binding-wires confining said metal sections.

4. The combination with the rim, of the tire of flexible material withlateral shoulders, a metal section engaged with and carried by eachshoulder, the section at one side being independent of that at the otherside, and binding-wires confining said metal sections.

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gaged with the rim portions 5. rlhe combination with the rirn, of thetire of exible Inaterial, of' metal sections enof the tire, a fabriobacking for the latter and having lateral extensions folded over uponthe sections and binding-wires bearing upon the upper portions of theextensions.

6. The combination withv the riln provided with side flanges, of a tireof yielding Inaterial having a base presenting lateral shoulders locatedbetween the rim-hanges, metal strips upon the shoulders and having innerspurs embedded in thetire, said strips also with outer, depending spursbearing against the side edges of the shoulders, and bindingwiresconfining said strips and shoulders.

7. The combination with the rirn provided with side flanges, oi' a tireoi? yielding material having a base presenting lateral shoulders locatedbetween the rim-flanges, metal strips upon the shoulders and havingspurs engaged with the tire, a canvas layer combined with the tire andprovided with lateral eX- tensions 'folded over upon the rnetal strips,and binding-wires bearing on the upper folded portions of the canyaslayer.

In testimony whereof I have signed my nameto this specification in thepresence of two vsubscribing witnesses.

EDWIN B. oADwELL.

Witnesses WILLIAM PAXTON, PHILIP K. STERN.

